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Quantitative flow ratio-guided staged percutaneous coronary intervention in patients with ST-segment elevation myocardial infarction. [PDF]

Heliyon
Hou S, Zhu X, Zhao Q, Xian H, Wang K, Qu C, Wang Y, Jiang X, Qian D, Liu Y, Zhou W, Wang Y, Liu L, Zhang R, Wu Q.   +14 more
europepmc   +1 more source

Impact of morphofunctional assessment with quantitative flow ratio and optical coherence tomography in patients with acute coronary syndromes. [PDF]

EuroIntervention
Osumi Y, Kawamori H, Toba T, Hiromasa T, Fujimoto D, Kakizaki S, Nakamura K, Hamana T, Fujii H, Sasaki S, Iwane S, Yamamoto T, Naniwa S, Sakamoto Y, Matsuhama K, Fukuishi Y, Kozuki A, Shite J, Takaya T, Ishida A, Iwasaki M, Hirata KI, Otake H.   +22 more
europepmc   +1 more source

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Quantitative flow ratio as a continuous predictor of myocardial infarction

EuroIntervention, 2023
The quantitative flow ratio (QFR) identifies functionally ischaemic lesions that may benefit more from percutaneous coronary intervention (PCI) than from medical therapy.This study investigated the association between QFR and myocardial infarction (MI) as affected by PCI versus medical therapy.All vessels requiring measurement (reference diameter ≥2.5 ...
Changdong, Guan, Nils P, Johnson, Rui, Zhang, Lihua, Xie, Miao, Chu, Yanyan, Zhao, Zheng, Qiao, Sheng, Yuan, Zhongwei, Sun, Kefei, Dou, Shengxian, Tu, Lei, Song, Shubin, Qiao, Bo, Xu   +13 more
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Quantitative Flow Ratio Analysis by Paramedical Compared With Medical Users

Journal of Invasive Cardiology, 2022
We aimed to validate whether quantitative flow ratio (QFR) analysis could be performed by both medical and paramedical certified users. Therefore, we compared QFR values with conventional guidewire-based fractional flow reserve (FFR) as the reference using core laboratory analysis. QFR allows FFR calculation based on the coronary angiogram.
Farhang Aminfar, Benjamin Honton, Pierre Meyer, Claude Mariottini, Philippe Durand, Maelle Haessler, Philippe Vareille, Williams Wijns, Luc Maillard, Julien Adjedj   +9 more
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Quantitative flow ratio—Meta‐analysis and systematic review

Catheterization and Cardiovascular Interventions, 2020
AbstractIntroductionDespite of the wide evidence of use fractional flow reserve (FFR), isolated angiography evaluation is still the main tool to indicate percutaneous coronary intervention. Quantitative flow ratio (QFR) is a new functional index to assess functional significance.
Carlos Cortés, Manuel Carrasco‐Moraleja, Alvaro Aparisi, Tania Rodriguez‐Gabella, Alberto Campo, Hipolito Gutiérrez, Fabián Julca, Itziar Gómez, Jose Alberto San Román, Ignacio J. Amat‐Santos   +9 more
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Validity and correlation of quantitative flow ratio with fractional flow reserve for assessment of intermediate coronary lesions

Acta Cardiologica, 2022
The angiographic percent diameter stenosis (%DS) do not assess the physiological significance of epicardial coronary stenosis. The currently practised physiological indices require pressure wires with or without adenosine-induced hyperaemia. Quantitative flow ratio (QFR) is an angiography-based method to determine the functional significance of ...
Ganesh Kasinadhuni, Akash Batta, Atit A. Gawalkar, Sudhanshu Budakoty, Ankush Gupta, Rajesh Vijayvergiya   +5 more
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Abstract 15380: Diagnostic Performance of Ultrasonic Flow Ratio versus Quantitative Flow Ratio for Assessment of Coronary Artery Stenosis

Circulation, 2023
Introduction: Ultrasonic flow ratio (UFR) is a novel intravascular ultrasound (IVUS)-derived method for fast computation of fractional flow reserve (FFR) without pressure wires and adenosine. Aims: The aim of this study was to evaluate the diagnostic performance of UFR and compare ...
Cheng Yang, Yong-Gang Sui, Jie Qian
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Automatic coronary blood flow computation: validation in quantitative flow ratio from coronary angiography

The International Journal of Cardiovascular Imaging, 2018
To assess a novel approach for automatic flow velocity computation in deriving quantitative flow ratio (QFR) from coronary angiography. QFR is a novel approach for assessment of functional significance of coronary artery stenosis without using pressure wire and induced hyperemia.
Yimin Zhang, Su Zhang, Jelmer Westra, Daixin Ding, Qiuyang Zhao, Junqing Yang, Zhongwei Sun, Jiayue Huang, Jun Pu, Bo Xu, Shengxian Tu   +10 more
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The prognostic relevance of delta fractional flow ratio and delta quantitative flow ratio in cardiovascular outcomes

European Heart Journal
Abstract Background The role and relationship of delta fractional flow reserve (FFR) and delta quantitative flow ratio (QFR) — calculated as post-PCI minus pre-PCI values — remain debatable. Aim The purpose of this ...
B Csanadi, T Ferenci, R Gal, N Bora, Z Piroth   +4 more
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Quantitative flow ratio and non-hyperemic pressure ratio in patients with intermediate coronary lesions

Cardiovascular Revascularization Medicine
Quantitative flow ratio (QFR) is a recent, non-invasive method for functional coronary assessment, providing estimates of lesion-specific ischemia without the need for pressure wires or hyperemic agents. While its diagnostic concordance with fractional flow reserve (FFR) has been previously explored, data comparing QFR to non-hyperemic pressure ratios (
Simone, Finocchiaro, Maria Sara, Mauro, Davide, Sclofani, Marco, Spagnolo, Antonio, Greco, Davide, Capodanno   +5 more
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